12/05 TOOL FORCES DEVELOPED DURING FRICTION STIR WELDING M. Melendez, W. Tang+, C. Schmidt, J. C. McClure, A. C. Nunes*, L. E. Murr Metallurgical and Materials Engineering Department University of Texas at El Paso +Mechanical Engineering Department, University of South Carolina, Columbia, S.C. *NASA Marshall Space Flight Center, Huntsville, Alabama ABSTRACT This paper will describe a technique for measuring the various forces and the torque that exist on the Friction Stir Welding pin tool. Results for various plunge depths, weld speeds, rotational speed, and tool configurations will be presented. Welds made on 6061 aluminum with typical welding conditions require a downward force of 2800 lbs. (12.5 kN) a longitudinal force in the direction of motion of 300 lbs (1.33 kN), a transverse force in the o x v direction of 30 lbs (135 N). Aluminum 2195 under typical weld conditions requires a downward force of 3 100 lbs. (1 3.8 kN), a longitudinal force of 920 lbs. (4.1 kN), and a transverse force of 45 lbs. (200 N) in the o x v direction. INTRODUCTION Friction stir welding 0, a remarkable modification of traditional fiiction welding, was invented in early 90's by The Welding Institute'. During Friction Stir Welding, the parts to be butt welded are clamped to a backing plate. A rapidly rotating cylindrical pin tool is then slowly plunged into the centerline of the joint until the 1
TOOL FORCES DEVELOPED DURING FRICTION STIR WELDING
Jun 17, 2023
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